To quantify the possible impact of different wood protection techniques on the aquatic environment, we applied a tiered Integrated Testing Strategy (ITS) on leachates obtained from untreated (UTW) Norway spruce (), specimens treated with a copper-ethanolamine-based preservative solution, complying with the Use Class 3 (UC3), and specimens thermally modified (TM). Different maturation times in water were tested to verify whether toxicant leaching is time-dependent. Tier I tests, addressing acute effects on and , evidenced that TM toxicity was comparable or even lower than in UTW. Conversely, UC3 significantly affected all species compared to UTW, also after 30 days of maturation in water, and was not considered an environmentally acceptable wood preservation solution. Tier II (effects on early-life stages of ) and III (chronic effects on and ) performed on UTW and TM confirmed the latter as an environmentally acceptable treatment, with increasing maturation times resulting in decreased adverse effects. The ITS allowed for rapid and reliable identification of potentially harmful effects due to preservation treatments, addressed the choice for a less impacting solution, and can be effective for manufacturers in identifying more environmentally friendly solutions while developing their products.

中文翻译：

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评估木材保护技术的环境兼容性的综合测试策略（ITS）


为了量化不同木材保护技术对水生环境可能产生的影响，我们对未经处理（UTW）的挪威云杉（用铜乙醇胺基防腐剂溶液处理的标本）获得的渗滤液采用了分层综合测试策略（ITS），符合使用等级 3 (UC3) 和热改性样品 (TM)。测试了在水中的不同熟化时间，以验证有毒物质浸出是否具有时间依赖性。一级测试针对对 和 的急性影响，证明 TM 毒性与 UTW 相当甚至更低。相反，与 UTW 相比，UC3 对所有物种都有显着影响，在水中熟化 30 天后也是如此，并且不被认为是环境可接受的木材防腐解决方案。对 UTW 和 TM 进行的第 II 级（对 的早期生命阶段的影响）和 III（对 和 的慢性影响）证实后者是一种环境可接受的处理方法，随着成熟时间的增加，不良影响减少。 ITS 可以快速、可靠地识别保存处理造成的潜在有害影响，解决选择影响较小的解决方案的问题，并且可以帮助制造商在开发产品时有效地确定更环保的解决方案。